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1Â Â This synthesis presents a state of the practice for night and weekend movement of permitted oversize (OS) and overweight (OW) loads for state departments of transpor- tation (DOTs). There are three primary efforts that were involved in this work: a literature review and assessment, a survey of state DOT practitioners, and additional interviews with specific case example states. In total, the survey yielded responses from 40 states (80%). The synthesis presents an analysis of data from the 40 states regarding their permitting processes for nighttime and weekend movements for both OS and OW loads. It provides insights into how states manage these permit processes and movements, and presents information on challenges the states have identified. Additional information from case examples details specific items of interest to the oversight panel and research team related to emergency determinations, motivations for permitting decisions, and associated efforts and studies. This synthesis report will be of interest to those responsible for permit issuing and planning. The report summarizes a variety of information related to the movement of these large loads on nights and weekends and will also be valuable to researchers developing a better sense of the nature of OS/OW movements outside of traditional daytime hours. S U M M A R Y Night and Weekend Movement of Oversize/Overweight Loads
